Density measuring apparatus
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United States of America Patent
Stats
-
Sep 28, 1993
Grant Date -
N/A
app pub date -
Feb 9, 1990
filing date -
Feb 9, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A simple and mechanically-rugged calculation or monitoring of the density of fluids, particularly of fuels serving the purpose of driving an internal-combustion engine, provides that a buoyant member is immersed into the fluid under examination, the buoyancy thereof being balanced out via a load applied with a spring. A capacitor that is dependent on the buoyancy and, therefore, on the density of the fluid under examination is formed between the buoyant member and the housing that holds the spring and is filled with the fluid under examination, the capacitor being monitored via a circuit arrangement.
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